1. Should burn blisters be kept, removed or completely removed?
This problem has also been a long-standing doubt in the medical field. For a long time, there are both pros and cons, but in recent years, research papers show that it seems more popular to remove blisters or completely remove them.
How did the blisters come from? After skin burn, epidermis and dermis are separated, inflammatory reaction begins, and interstitial fluid takes advantage of it to form blisters. Bubbles are not only water, but also contain a lot of inflammatory substances and growth factors. Those who favor keeping blisters believe that keeping blisters can reduce pain and infection, and some components of interstitial fluid can promote wound growth and angiogenesis.
The argument of those who support taking out or removing blisters is that inflammatory substances in blisters will hinder wound healing and deepen burn depth. The epidermis that forms blisters is necrotic, and a large area of necrotic epidermis will only form a hotbed for bacterial growth. Removing blisters also allows doctors to accurately assess the depth of burns and then choose the way of dressing.
Small blisters can be removed directly, and larger blisters can be kept.
Dr. Ou Guan of Taiwan Province Province said that blisters have both advantages and disadvantages. Therefore, in the outpatient clinic, very small blisters can be kept and will be absorbed by themselves in a week or so. Patients or children who are afraid of pain will be scratched by doctors to let tissue fluid flow out and then bandaged; However, it is usually recommended to directly remove large areas of blisters. It should be noted that it should be taken out by medical staff with aseptic technology, not by themselves, to avoid bacterial infection. It is true that the wound will be more painful after resection, but now medicine is very advanced. The pain after dressing is the same as when blisters are not removed, and it is not necessary to change the dressing every day.
"I heard that blisters are not easy to leave scars?" Studies have confirmed that there is no such statement. Whether there is scar is related to the depth of burn, and wounds above the second degree basically do not scar. Simple identification method: as long as it is a burn wound that heals within 14 days, it is unlikely to leave scars.
Second, it's easier to keep the wound ventilated, okay?
People often think that wounds will heal faster if they are ventilated instead of stuffy. This is a wrong idea. The primary task of the wound after blister removal is to keep the wound moist.
In the1960s, some scholars put forward occlusive dressings, and they found that epidermal cells migrated faster in humid environment, thus shortening the healing time of wounds. In fact, just like soil, lush plants can never grow in a dry desert. At present, the principle of nursing burn wounds is to moisturize the wounds, such as using ointment, artificial skin, seaweed gel, foam dressing and so on. , but not too wet, otherwise there will be the problem of wound infiltration affecting healing.